Sonic transformed into Super Sonic several times in the past, and knows the Chaos Emeralds' power.
Destroying the World's fateEdit
The Biolizard linked with the Space Colony ARK and sent it to Earth. Sonic then teamed up with Shadow the Hedgehog and transformed into Super Sonic. Super Sonic and Super Shadow then battled the FinalHazard using Super Sonic's Super Sonic Boost. They eventually defeated it and used Chaos Control to stop the ARK from striking Earth. Super Sonic then transformed back into Sonic.
Settling an Old ScoreEdit
Sonic transformed into Super Sonic again to fight Metal Sonic, who had transformed into Metal Overlord. He then shared his power with Knuckles the Echidna and Miles "Tails" Prower, granting them Super Shields. After five Super Sonic Power attacks on him, Metal Sonic was destroyed and Super Sonic returned to Sonic again.
After the seven Chaos Emeralds come together and Elise kisses Sonic, Sonic is revived and transforms into Super Sonic. He then shares his power with Shadow and Silver, transforming them into Super Shadow and Super Silver. They then battle Solaris and destroy him. Super Sonic then lands as he travels back to the past with Elise in his normal state.
After Ix transforms into Super Ix, Sonic uses the seven Chaos Emeralds to transform into Super Sonic and battle Ix. He wins using a Super Sonic move and uses Chaos Control to teleport his team to the Cyclone so they can escape the Twilight Cage. He then transforms back into Sonic.
Sonic uses the Chaos Emeralds to battle Nega-Mother Wisp. He defeated her by using Super Sonic Boost on her tendrils.
Battle in timeEdit
After Sonic's initial defeat by the Time Eater, Modern and Classic Sonic were cheered on by their friends, which resulted in them transforming into Modern and Classic Super Sonic. They then destroyed the Time Eater and teleported back to Earth, reverting to normal.